A.10.0.0.0--10.255.255.255 B.172.16.0.0-172.31.255.255 C.192.168.0.0-192.168.255.255 D.100.0.0.0-100.255.255.255
A.130 B.110 C.210 D.150
A.物理層 B.數(shù)據(jù)鏈路層 C.傳輸層 D.表示層